CVE-2006-6171

highpriority · track · 34EPSS 0.102 · 96 %ileEUUS
grimoire priorityP1 · Urgent
Exploitable?
—
no known exploitation
Likely / severe?
10.2% (96th) EPSS
CVSS 7.5 · high
Is it mine?
2 products
Check your exposure
Who says so?
2 sources
enisa_euvd · nvd

EPSS · scored 2026-10-28

ProFTPD 1.3.0a and earlier does not properly set the buffer size limit when CommandBufferSize is specified in the configuration file, which leads to an off-by-two buffer underflow. NOTE: in November 2006, the role of CommandBufferSize was originally associated with CVE-2006-5815, but this was an error stemming from a vague initial disclosure. NOTE: ProFTPD developers dispute this issue, saying that the relevant memory location is overwritten by assignment before further use within the affected function, so this is not a vulnerability

01

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–7.5

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4
v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-122USLLM-inferred
03

affected products (2)

Products and version ranges known to be affected.

04

also known as (2)

Other names and identifiers for this entity.

05

sources

Which sources assert this record, and when.

enisa_euvdnvdNVDCVE.orgMITRE
published 2006-11-30modified 2026-06-16
06

references (28)

External citations — patches, advisories, analysis.

scry

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